Proximity sensor kept active after call ended

[Víctor R. Ruiz]

Test case.
- Open the dialer app.
- Make a call.
- Accept the call in the receiver phone.
- Leave the phone for a minute.
- Finish the call on the receiver phone.

Expected result.
- Leaving the phone for a minute must not dim the screen.
- After the call is finished, the proximity sensor must be deactivated.

Actual result.
- After a minute the screen dims.
- After the call is finished, the proximity sensor is active.

current build number: 27
device name: krillin
channel: ubuntu-touch/stable/bq-aquaris.en

[Jean-Baptiste Lallement (jibel)]

confirmed with krillin rc-proposed 184

[kevin gunn (kgunn72)]

this feels very similar to recent bug about flashing during a phone call

[Alexandros Frantzis (afrantzis)]

This is different from bug #1531158 and it describes two different behaviors.

> Expected - Leaving the phone for a minute must not dim the screen.
> Actual - After a minute the screen dims.

(I am assuming this is referring to the case when a call is active)

USC/Powerd currently implement the behavior as stated in the requirements doc [1]. In particular, the use case: "answer call, let the inactivity timer of 60secs turn off screen [YES] proximity cover/uncover should turn on the screen [YES]".

> Expected - After the call is finished, the proximity sensor must be deactivated.
> Actual - After the call is finished, the proximity sensor is active.

This is a known issue. There are some technical/architectural issues that have stopped us from providing a better behavior. Currently, ending a call is treated (almost) like a notification arrival, which enables proximity, turns on the screen (if screen is not covered) and enables a short inactivity timeout (15s).

[1] https://docs.google.com/document/d/1RBoVknCLZ4GQ8E_iVftd3i_KmdxI5d6JrBt7i5EDZO0/edit

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[kevin gunn (kgunn72)]

@alf - should this be covered under ota12 with the repowerd release?

[Alexandros Frantzis (afrantzis)]

> @alf - should this be covered under ota12 with the repowerd release?

Repowerd properly implements "After the call is finished, the proximity sensor must be deactivated.", so yes.

However, repowerd does not implement "Leaving the phone for a minute must not dim the screen.", since it contradicts the policy document, as noted in a previous comment.